GeForce GT 240 GDDR5 1GB vs GeForce GTX 650 Ti 2GB

Intro

Compare all that to the GeForce GTX 650 Ti 2GB, which features a clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is comprised of 768 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 240 GDDR5 1GB		70 Watts
GeForce GTX 650 Ti 2GB		110 Watts
	Difference: 40 Watts (57%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 650 Ti 2GB should in theory be much better than the GeForce GT 240 GDDR5 1GB in general. (explain)

GeForce GTX 650 Ti 2GB		86400 MB/sec
GeForce GT 240 GDDR5 1GB		54400 MB/sec
	Difference: 32000 (59%)

Texel Rate

The GeForce GTX 650 Ti 2GB should be a lot (more or less 237%) faster with regards to AF than the GeForce GT 240 GDDR5 1GB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GT 240 GDDR5 1GB		17600 Mtexels/sec
	Difference: 41792 (237%)

Pixel Rate

The GeForce GTX 650 Ti 2GB should be quite a bit (approximately 237%) faster with regards to anti-aliasing than the GeForce GT 240 GDDR5 1GB, and should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
GeForce GT 240 GDDR5 1GB		4400 Mpixels/sec
	Difference: 10448 (237%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved across the external memory interface in one second. It's calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.